Coupling-sleeve



(No Model.)

J. WILLIS. COUPLING SLEEVE. No, 415,759. Patented Nov. 26, 1889.

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UNITED STATES PATENT OFFICE.

JAMES VILLIS, OF CORNXYALL, NEW YORK.

COUPLING-SLEEVE.

SPECIFICATION forming part of Letters Patent No. 41 5,7 59, dated November 26, 1889.

Application filed November 6, 1888. Serial No. 290,160. (No model.)

To all whom it may concern.-

Be it known that I, JAMES 'WILLIs, a citizen of the United States, residing at Cornwall, in the county of Orange and State of New York, have invented a new Coupling Sleeve for Connecting the Tubes in the Construction of Tubular Arched Bridges, of which the following is the specification.

My invention relates to an improved coupling-sleeve for connecting the tubes of tubular arched bridges; and the objects of my improvements are, first, to strengthen the arch at the connection of the tubes by making the coupling-sleeve with an internal dialnetrical, central, and vertical flat bar integral. With it and occupying one-third of the length of the couplingsleeve, with a hole pierced horizontally through the center of the bar and coupling-sleeve for the connecting-pin; second, to preserve the proper position of the scarfed ends of the abutting tubes, allowing the connecting-pin to pass evenly through all the parts; third, to permit a slight motion on the connecting-pin, Which will compensate for the expansion and contraction produced by the change of temperature. I attain these objects by the introduction of the vertical flat bar in the construction of the couplingsleeve, as described above and illustrated in the accompanying drawings, in Which Figure 1 is a vertical longitudinal section through the center, showing the couplingsleeve A B C D with the tubes E F G H and I K L M attached, and the pin-hole through the center of the bar and the scarfs of the tubes. Fig. 2 is a vertical lateral section through the center, showing the couplingsleeve With the bar and the scarfs of the tubes setting against it and the section of the pin 6 passing through the whole. Fig. 3 is a horizontal longitudinal section at a right angle to Fig. 1., showing the coupling-sleeve A B C D with tubes attached, showing their soarfs a and h passing through the couplingsleeve on the two sides of the bar 0 d, with the pin e passing through the Whole. Fig. 4 is the same section as Fig. 3, only the tubes and the pin are omitted, showing only the section of the sleeve and the pin-holes. Fig. 5 is the elevation of the coupling-sleeve and the tubes connected, as shown when finished and complete.

I am aware thateoupling-sleeves have been used prior to my invention; but I am not aware that any coupling-sleeve has been used or made with an integral vertical flat bar attached; but

WVhat I do claim as my invention, and desire to secure by Letters Patent, is-

A coupling-sleeve having formed integral with it an internal 7 diametrical central flat bar forming a compact body in one piece, all substantially as set forth.

JAMES WILLIS. Witnesses:

HENRY F. CHADEAYNE, HARVEY R. TAYLOR. 

